be/go at it hammer and tongs
US /biːt əˈraʊnd ðə bʊʃ/
UK /biːt əˈraʊnd ðə bʊʃ/
1.
to argue or fight with a lot of energy and noise
:
•
They were at it hammer and tongs over who should pay the bill.
•
The two teams went at it hammer and tongs for the entire game.